Highest temperature in Shanghai on July 13?

Platform comparison

Market context

Shanghai is facing its peak summer heat window today, with the Shanghai Pudong International Airport Station expected to record its daily maximum temperature before the settlement deadline at noon UTC. The crowd-implied probability sits at 0% YES, suggesting the market believes the temperature will fall outside the specific range offered, yet historical data for mid-July in Shanghai consistently shows highs averaging 32.1°C, with frequent spikes exceeding 35°C during sunny spells [4][7]. This 0% pricing appears to be a contrarian underdog position; while the specific range might be narrow, the regional climate in July is the hottest of the year, with average highs reaching 87°F (30.6°C) and regular extremes pushing toward 95°F (35°C) [3].

Traders should monitor the real-time hourly forecast from Yr and the 24-hour summary from the National Weather Service, as current conditions show passing clouds with a morning temperature of 84°F (29°C) and wind speeds of 17 mph, which could suppress the peak if convection remains limited [8][9]. The primary catalyst is the afternoon solar intensity; if skies clear by midday, the temperature could breach the 35°C threshold that defines the hottest summer days in the region [7]. Recent records indicate Shanghai has already seen preliminary highs of 40.9°C at the Xujiahui station earlier in July, confirming that extreme heat events are not anomalies but seasonal realities [6]. The value spot likely lies in betting against the 0% consensus, as the historical probability of reaching extreme mid-July highs is substantial, making the current pricing a potential favourite misread by the crowd.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on July 13? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Who Will Win 2026, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.